sage:from sage.modular.dirichlet import DirichletCharacter
H = DirichletGroup(3520, base_ring=CyclotomicField(4))
M = H._module
chi = DirichletCharacter(H, M([2,0,1,2]))
         
     
    
    
        
        pari:[g,chi] = znchar(Mod(1407,3520))
         
     
    
  \(\chi_{3520}(703,\cdot)\)
  \(\chi_{3520}(1407,\cdot)\)
    
        
        sage:chi.galois_orbit()
         
     
    
    
        
        pari:order = charorder(g,chi)
[ charpow(g,chi, k % order) | k <-[1..order-1], gcd(k,order)==1 ]
         
     
    
 
\((2751,1541,2817,321)\) → \((-1,1,i,-1)\)
  
    
      
        | \(a\) | 
        \(-1\) | \(1\) | \(3\) | \(7\) | \(9\) | \(13\) | \(17\) | \(19\) | \(21\) | \(23\) | \(27\) | \(29\) |       
    
    
      | \( \chi_{ 3520 }(1407, a) \) | 
      \(-1\) | \(1\) | \(i\) | \(i\) | \(-1\) | \(i\) | \(-i\) | \(-1\) | \(-1\) | \(i\) | \(-i\) | \(1\) |     
  
 
    
        
        sage:chi.jacobi_sum(n)